Process

WIKA
Part of your business

Solutions for pressure, temperature, force and level measurement, flow measurement, calibration and SF6 gas solutions from WIKA are an integral component of our customers' business processes.

This is why we consider ourselves to be not just suppliers of measurement components but rather more a competent partner that offers comprehensive solutions in close co-operation with our customers – customised and precisely designed products for the exact requirement.

How does a reflex sight glass level indicator work?

The principle of the reflex level indicator is based on the reflection of light. In the gas or steam phase, the light is reflected by the prismatic grooves of the sight glass so that bright indication is achieved. In the liquid phase, the light is absorbed, resulting in a dark indication of the level.

In which areas can transparent sight glass level indicators be used?

They are the most suitable gauges for steam application above 35 bar, where mica shields have to be used to protect the sight glasses from corrosion by the steam boiler water. They can also be utilised in a great number of other applications,in particular for observing interface layers or liquid colour. A backlight illuminator can be fitted to the rear to improve visibility.

What are the benefits of sight glasses in level measurement?

Detection of liquid level with glass level gauges is almost independent from physical properties like refraction index, density, conductivity, colour